US2021336179A1PendingUtilityA1

Display panel and manufacturing method thereof and display device

Assignee: WUHAN CHINA STAR OPOELECTRONICS SEMICONDUCTOR DISLPAY TECH CO LTDPriority: Apr 28, 2019Filed: May 15, 2019Published: Oct 28, 2021
Est. expiryApr 28, 2039(~12.7 yrs left)· nominal 20-yr term from priority
Inventors:Yamei Bai
H10D 84/01H10K 50/17H10K 50/18H10K 59/122H01L 51/5092H01L 51/5096H01L 51/5072H01L 51/5056H01L 51/56H10K 50/16H10K 50/15H10K 59/10H10K 71/00H10K 50/171H10K 71/166
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Claims

Abstract

A display panel, a method of manufacturing the display panel, and a display device include a substrate, and a pixel separate layer and an organic light-emitting device layer both sequentially disposed on the substrate. The pixel separate layer includes a plurality of dividing bodies and a plurality of open areas spaced apart from each other. Adjacent two of the open areas are separated by the dividing bodies. The organic light-emitting device layer includes a plurality of organic light-emitting devices each including a hole injection layer, and the hole injection layers of adjacent two of the organic light-emitting devices are spaced apart from each other.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
         1 . A display panel, comprising:
 a substrate, and a pixel separate layer and an organic light-emitting device layer both sequentially disposed on the substrate;
 wherein the pixel separate layer comprises a plurality of dividing bodies and a plurality of open areas spaced apart from each other, wherein adjacent two of the open areas are separated by the dividing bodies, and the organic light-emitting device layer comprises a plurality of organic light-emitting devices each comprising a hole injection layer, and wherein the hole injection layers of adjacent two of the organic light-emitting devices are spaced apart from each other. 
   
     
     
         2 . The display panel of  claim 1 , wherein each of the organic light-emitting devices further comprises a hole transport layer disposed on the pixel separate layer configured with the hole injection layer, wherein the hole transport layers of adjacent two of the organic light-emitting devices are spaced apart from each other. 
     
     
         3 . The display panel of  claim 1 , wherein each of the organic light-emitting devices further comprises a light-emitting layer disposed on the pixel separate layer configured with the hole injection layer, wherein the light-emitting layers of adjacent two of the organic light-emitting devices are spaced apart from each other. 
     
     
         4 . The display panel of  claim 1 , wherein each of the organic light-emitting devices further comprises an electron transport layer disposed on the pixel separate layer configured with the hole injection layer, wherein the electron transport layers of adjacent two of the organic light-emitting devices are spaced apart from each other. 
     
     
         5 . The display panel of  claim 1 , wherein each of the organic light-emitting devices further comprises an electron blocking layer, a hole blocking layer, and an electron injection layer sequentially disposed away from the hole injection layer, wherein at least one of the electron blocking layers, the hole blocking layers, and the electron injection layers of adjacent two of the organic light-emitting devices are spaced apart from each other. 
     
     
         6 . The display panel of  claim 1 , wherein each of the organic light-emitting devices further comprises an anode disposed on the open area and located between the substrate and the hole injection layer. 
     
     
         7 . A method of manufacturing a display panel, comprising:
 providing a substrate;   forming a pixel separate layer comprising a plurality of dividing bodies and a plurality of open areas spaced apart from each other, wherein adjacent two of the open areas are separated by the dividing bodies; and   forming an organic light-emitting device layer on the substrate configured with the pixel separate layer, wherein the organic light-emitting device layer comprises a plurality of organic light-emitting devices each comprising a hole injection layer, and wherein the hole injection layers of adjacent two of the organic light-emitting devices are spaced apart from each other.   
     
     
         8 . The manufacturing method of  claim 7 , wherein the forming an organic light-emitting device layer on the substrate configured with the pixel separate layer comprises:
 depositing, by using a first fine mask, a hole injection layer on the substrate configured with the pixel separate layer; and   depositing a hole transport layer, a light-emitting layer, and an electron transport layer in sequence on the pixel separate layer configured with the hole injection layer, wherein at least one of the hole transport layer, light-emitting layer, and the electron transport layer is formed by using a second fine mask.   
     
     
         9 . The manufacturing method of  claim 8 , wherein before the depositing, by using a first fine mask, a hole injection layer on the substrate configured with the pixel separate layer, the method further comprises:
 evaporating an anode in the open areas.   
     
     
         10 . The manufacturing method of  claim 8 , wherein the depositing a hole transport layer, a light-emitting layer, and an electron transport layer in sequence on the pixel separate layer configured with the hole injection layer comprises:
 depositing, by using the second fine mask, the hole transport layer on the pixel separate layer configured with the hole injection layer;   depositing, by using an opening mask, the light-emitting layer and the electron transport layer in sequence on the pixel separate layer configured with the hole transport layer.   
     
     
         11 . The manufacturing method of  claim 7 , wherein each of the organic light-emitting devices further comprises an electron blocking layer, a hole blocking layer, and an electron injection layer sequentially disposed away from the hole injection layer, wherein at least one of the electron blocking layers, the hole blocking layers, and the electron injection layers of adjacent two of the organic light-emitting devices are spaced apart from each other. 
     
     
         12 . A display device, comprising a driving circuit and a display panel, wherein the driving circuit is configured to provide a driving voltage for the display panel, and the display panel comprises substrate, and a pixel separate layer and an organic light-emitting device layer both sequentially disposed on the substrate;
 wherein the pixel separate layer comprises a plurality of dividing bodies and a plurality of open areas spaced apart from each other, wherein adjacent two of the open areas are separated by the dividing bodies, and the organic light-emitting device layer comprises a plurality of organic light-emitting devices each comprising a hole injection layer, and wherein the hole injection layers of adjacent two of the organic light-emitting devices are spaced apart from each other.   
     
     
         13 . The display device of  claim 12 , wherein each of the organic light-emitting devices further comprises a hole transport layer disposed on the pixel separate layer configured with the hole injection layer, wherein the hole transport layers of adjacent two of the organic light-emitting devices are spaced apart from each other. 
     
     
         14 . The display device of  claim 12 , wherein each of the organic light-emitting devices further comprises a light-emitting layer disposed on the pixel separate layer configured with the hole injection layer, wherein the light-emitting layers of adjacent two of the organic light-emitting devices are spaced apart from each other. 
     
     
         15 . The display device of  claim 12 , wherein each of the organic light-emitting devices further comprises an electron transport layer disposed on the pixel separate layer configured with the hole injection layer, wherein the electron transport layers of adjacent two of the organic light-emitting devices are spaced apart from each other. 
     
     
         16 . The display device of  claim 12 , wherein each of the organic light-emitting devices further comprises an electron blocking layer, a hole blocking layer, and an electron injection layer sequentially disposed away from the hole injection layer, wherein at least one of the electron blocking layers, the hole blocking layers, and the electron injection layers of adjacent two of the organic light-emitting devices are spaced apart from each other. 
     
     
         17 . The display device of  claim 12 , wherein each of the organic light-emitting devices further comprises an anode disposed on the open area and located between the substrate and the hole injection layer.

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